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FILE - This Oct. 8, 2011 file photo shows North Carolina's Sylvester Williams (92) rushing Louisville quarterback Teddy Bridgewater (5) for a sack during the second half of an NCAA college football game in Chapel Hill, N.C. Older players who have taken different routes to college football have become mentors in Atlantic Coast Conference locker rooms filled with teenagers who have known only football. The value of players like Clemson's Daniel Rodriguez or North Carolina's Sylvester Williams is about more than what they do on the field. (AP Photo/Gerry Broome, File) Photo by THE ASSOCIATED PRESS